Reapply support for new Uint8ClampedArray in dart:dom.

tests/dom/typed_arrays_4_test.dart

Index: tests/dom/typed_arrays_4_test.dart
diff --git a/tests/dom/typed_arrays_4_test.dart b/tests/dom/typed_arrays_4_test.dart
index 99bec458e2acd597862efeb27bc1ce3a81a503d1..061a2a87f39c2a11c66731f30ff91cd3f69df7b0 100644
--- a/tests/dom/typed_arrays_4_test.dart
+++ b/tests/dom/typed_arrays_4_test.dart
@@ -26,6 +26,21 @@ main() {
       Expect.equals(512 + 50, a1.lastIndexOf(50, 768 + 50 - 1));
   });
 
+  test('indexOfClamped_dynamic', () {
+      var a1 = new Uint8ClampedArray(1024);
+      for (int i = 0; i < a1.length; i++) {
+        a1[i] = i;
+      }
+
+      Expect.equals(50, a1.indexOf(50));
+      Expect.equals(50, a1.indexOf(50, 50));
+      Expect.equals(256 + 50, a1.indexOf(50, 51));
+
+      Expect.equals(768 + 50, a1.lastIndexOf(50));
+      Expect.equals(768 + 50, a1.lastIndexOf(50, 768 + 50));
+      Expect.equals(512 + 50, a1.lastIndexOf(50, 768 + 50 - 1));
+  });
+
   test('indexOf_typed', () {
       Uint8Array a1 = new Uint8Array(1024);
       for (int i = 0; i < a1.length; i++) {
@@ -40,4 +55,19 @@ main() {
       Expect.equals(768 + 50, a1.lastIndexOf(50, 768 + 50));
       Expect.equals(512 + 50, a1.lastIndexOf(50, 768 + 50 - 1));
   });
+
+  test('indexOfClamped_typed', () {
+      Uint8ClampedArray a1 = new Uint8ClampedArray(1024);
+      for (int i = 0; i < a1.length; i++) {
+        a1[i] = i;
+      }
+
+      Expect.equals(50, a1.indexOf(50));
+      Expect.equals(50, a1.indexOf(50, 50));
+      Expect.equals(256 + 50, a1.indexOf(50, 51));
+
+      Expect.equals(768 + 50, a1.lastIndexOf(50));
+      Expect.equals(768 + 50, a1.lastIndexOf(50, 768 + 50));
+      Expect.equals(512 + 50, a1.lastIndexOf(50, 768 + 50 - 1));
+  });
 }